Wallenda is in town for Winter Jam 2014, a Christian music and leadership event.

He'll walk a tightrope across the top of the Georgia Dome at 8 p.m. Saturday night as part of the festivities. He will not wear a safety harness for the stunt. More than 30,000 people are expected to be in the crowd to watch the stunt.

Nik Wallenda is the seventh generation of the Great Wallendas. His grandfather, the legendary Karl Wallenda, brought the family to America for The Greatest Show on Earth. During the depression era, he gained fame for the seven-person high wire pyramid.

During a high wire walk in Puerto Rico, Karl Wallenda fell to his death. Nik Wallenda went back to that high wire walk in 2011 and successfully completed it. His grandfather's death was blamed on bad rigging. It's the reason Nik and his father always oversee the rigging themselves.